Botany teaching & cetera
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Botany teaching & cetera
Mostly links I want to save for teaching introductory botany, but other things of interest as well.
Curated by Eve Emshwiller
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Wonderful Things: Desmids, Microscopic Plants of Unusual Beauty and Oddball Behavior | The Artful Amoeba, Scientific American Blog Network

Wonderful Things: Desmids, Microscopic Plants of Unusual Beauty and Oddball Behavior | The Artful Amoeba, Scientific American Blog Network | Botany teaching & cetera | Scoop.it
Sometimes I want to show you something just because it's wonderful. So today I'm introducing a new feature: Wonderful Things. The name is taken from my ...
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The Enormous Influence of Microscopic Marine Plants - AoB Blog

The Enormous Influence of Microscopic Marine Plants - AoB Blog | Botany teaching & cetera | Scoop.it
The Enormous Influence of Microscopic Marine Plants...

Via Anne Osterrieder
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Top Ten Spooky Plants | Earth Rangers Wild Wire Blog

Top Ten Spooky Plants | Earth Rangers Wild Wire Blog | Botany teaching & cetera | Scoop.it
Dive into Halloween with a list of scary plants, from the Devil's Claw and Ghost Plant to Witch-Hazel and Dracula Orchids this top ten is sure to leave you spooked!

Via Anne Osterrieder
Eve Emshwiller's insight:

Could be fun to show students.

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The Gut-Wrenching Science Behind the World’s Hottest Peppers

The Gut-Wrenching Science Behind the World’s Hottest Peppers | Botany teaching & cetera | Scoop.it
While contestants take their seats onstage, an emcee recites rules. Competitors have 20 seconds to eat as many chilies as they can. Peppers must be chewed at least three times, to ensure the release of the pain-causing ingredient; the highest concentration of capsaicin is in the lining of the pepper—its placenta—and the seeds. (The chili plant, like any good mother, is protective of its offspring.)

 


Via Meristemi
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Peppers always get attention.

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What Plants Talk About - Full Length Documentary

"This program integrates hard-core science with a light-hearted look at how plants behave, revealing a world where plants are as busy, responsive and complex as we are."


Via Mary Williams, Ana G. Valenzuela Zapata
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Eve Emshwiller's curator insight, April 24, 2013 1:24 PM

I hope to have time to watch this sometime soon.

Ana G. Valenzuela Zapata's curator insight, April 25, 2013 2:55 AM

Hermoso

Subhabrata Panda's curator insight, April 25, 2013 11:33 AM

This an in-depth studies on biological phenomena with the help of physical and chemical methods.

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The Hidden World of Soil Under Our Feet

The Hidden World of Soil Under Our Feet | Botany teaching & cetera | Scoop.it
Scientists are working hard to understand the life that teems within our soil and that is threatened by farming and development.
Eve Emshwiller's insight:

Biodiversity of soil bacteria, fungi, etc.

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Plants 'talk' through fungus network

Plants 'talk' through fungus network | Botany teaching & cetera | Scoop.it
Researchers show that plants can communicate the need to protect themselves from attack by aphids by making use of an underground network of fungi.
Eve Emshwiller's insight:

News came just in time for class topic on plant defenses, including inducible defenses.

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Video: Botanical Exploration in Fiji | The Field Museum

Video: Botanical Exploration in Fiji | The Field Museum | Botany teaching & cetera | Scoop.it

"In 2011, botanists from The Field Museum, together with colleagues from all over the world and local Fijians, spent several weeks looking for Bryophytes in Fiji. Join them in their expedition and learn what this fascinating group of early land plants can tell us."

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Field Museum botanists Matt von Konrat, Thorsten Lumbsch, and others study the bryophytes and lichens of Fiji.

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Continental-scale temperature variability during the past two millennia

Continental-scale temperature variability during the past two millennia | Botany teaching & cetera | Scoop.it

Past global climate changes had strong regional expression. To elucidate their spatio-temporal pattern, we reconstructed past temperatures for seven continental-scale regions during the past one to two millennia. The most coherent feature in nearly all of the regional temperature reconstructions is a long-term cooling trend, which ended late in the nineteenth century. At multi-decadal to centennial scales, temperature variability shows distinctly different regional patterns, with more similarity within each hemisphere than between them. There were no globally synchronous multi-decadal warm or cold intervals that define a worldwide Medieval Warm Period or Little Ice Age, but all reconstructions show generally cold conditions between ad 1580 and 1880, punctuated in some regions by warm decades during the eighteenth century. The transition to these colder conditions occurred earlier in the Arctic, Europe and Asia than in North America or the Southern Hemisphere regions. Recent warming reversed the long-term cooling; during the period ad 1971–2000, the area-weighted average reconstructed temperature was higher than any other time in nearly 1,400 years.


Via Jean-Pierre Zryd
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What our plants are telling us about climate change - PennLive.com

What our plants are telling us about climate change - PennLive.com | Botany teaching & cetera | Scoop.it
What our plants are telling us about climate change
PennLive.com
Those are what central-Pennsylvania plants are telling us about a climate that's noticeably different than even 20 years ago.
Eve Emshwiller's insight:

Gardeners are noticing changes due to climate change.

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Feasting on fungi - Vancouver Sun - Vancouver Sun

Feasting on fungi - Vancouver Sun
Vancouver Sun
Those forests are rich with wild mushrooms, but it was in an overseas location that Jones' interest in all things fungi sprouted. Jones' education and first career was in geology.
Eve Emshwiller's insight:

For those more daring in mycology.

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Total buzz kill: Metals in flowers may play role in bumblebee decline

Total buzz kill: Metals in flowers may play role in bumblebee decline | Botany teaching & cetera | Scoop.it
Beekeepers and researchers nationally are reporting growing evidence that a powerful new class of pesticides may be killing off bumblebees. Now, research points toward another potential cause: metal pollution from aluminum and nickel.

Via Meristemi, Mary Williams
Eve Emshwiller's insight:

Another threat to pollinators (in addition to pesticides)

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Hunting The Wild Lichen

Hunting The Wild Lichen | Botany teaching & cetera | Scoop.it
Lichens grow practically everywhere, but they have been neglected by scientists for years, says James Lendemer, a lichenologist with New York Botanical Garden.
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4 minute video on diversity of lichens.

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As Many Exceptions As Rules: It’s A Plant World, We’re Just Living In It

As Many Exceptions As Rules: It’s A Plant World, We’re Just Living In It | Botany teaching & cetera | Scoop.it

Life on Earth is easy. It can be boiled down to three sentences. “The mitochondria and the chloroplasts are, in a fundamental sense, the most important things on Earth. Between them, they produce oxygen and arrange for its use. In effect, they run the place.” Lewis Thomas wrote this in his award winning book, The Lives Of The Cell: Notes Of A Biology Watcher, in 1975.


Via Anne Osterrieder
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Think you know what a cross-section of a single blade of grass looks like under the microscope? http://yfrog.com/ocqv7lqj

Think you know what a cross-section of a single blade of grass looks like under the microscope? http://yfrog.com/ocqv7lqj | Botany teaching & cetera | Scoop.it

Via Anne Osterrieder
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Anne Osterrieder's comment, June 7, 2013 8:47 PM
Image by Phil Gates, more pretty pictures here: http://beyondthehumaneye.blogspot.co.uk/
Eve Emshwiller's comment, June 9, 2013 1:09 PM
Thank you for credit info, Anne.
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eLife: The rise and fall of the Phytophthora infestans lineage that triggered the Irish potato famine (2013)

eLife: The rise and fall of the Phytophthora infestans lineage that triggered the Irish potato famine (2013) | Botany teaching & cetera | Scoop.it

Phytophthora infestans, the cause of potato late blight, is infamous for having triggered the Irish Great Famine in the 1840s. Until the late 1970s, P. infestans diversity outside of its Mexican center of origin was low, and one scenario held that a single strain, US-1, had dominated the global population for 150 years; this was later challenged based on DNA analysis of historical herbarium specimens. We have compared the genomes of 11 herbarium and 15 modern strains. We conclude that the nineteenth century epidemic was caused by a unique genotype, HERB-1, that persisted for over 50 years. HERB-1 is distinct from all examined modern strains, but it is a close relative of US-1, which replaced it outside of Mexico in the twentieth century. We propose that HERB-1 and US-1 emerged from a metapopulation that was established in the early 1800s outside of the species' center of diversity.

 

Preprint @ http://arxiv.org/abs/1305.4206


Via Kamoun Lab @ TSL, Mary Williams
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Alejandro Rojas's curator insight, May 21, 2013 7:54 AM

I'm so excited to see a paper like this!, It is so great to have acces to papers like this through systems like ArXiv.  

Jennifer Mach's comment, May 21, 2013 9:34 AM
Nature News and Views article: http://www.nature.com/news/pathogen-genome-tracks-irish-potato-famine-back-to-its-roots-1.13021
Mary Williams's comment, May 21, 2013 11:45 AM
On the radio http://kamounlab.tumblr.com/post/50992192578/go-back-to-the-past-to-better-prepare-for-the
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Power Plants | Guest Blog, Scientific American Blog Network

Power Plants | Guest Blog, Scientific American Blog Network | Botany teaching & cetera | Scoop.it

Think about it. Everything you have ever eaten, or will ever eat, can ultimately be traced back to an organism carrying out photosynthesis.


Via Meristemi
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No early birds getting the worms: Songbirds risk missing peak food supply

No early birds getting the worms: Songbirds risk missing peak food supply | Botany teaching & cetera | Scoop.it

June 3, 2013 Science Daily

A mismatch between the departure schedules of songbirds and higher spring temperatures at their breeding sites means they are arriving 'late' for the advanced spring and likely missing out on peak food they need to be productive breeders.

Aerial insectivores, like purple martins and other swallows, are experiencing strong population declines, particularly species migrating longer distances and populations breeding further north. Scientists have shown in a European species that declines may be due to an inability to advance arrival schedules to match a warming climate. This study provides the first direct evidence of a discrepancy between higher spring temperatures at breeding sites and departure schedules of individual songbirds..... http://www.sciencedaily.com/releases/2013/06/130603135525.htm

 


Via pdjmoo
Eve Emshwiller's insight:

Example of effects of global climate change.

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Woman killed by poisonous mushrooms

Woman killed by poisonous mushrooms | Botany teaching & cetera | Scoop.it
A woman from Somerset died after eating one of the world's most deadly mushrooms, picked from her garden, an inquest hears.
Eve Emshwiller's insight:

When learning about mushrooms, we should be reminded that some are deadly, so to be very sure of the identification of any we intend to eat
Hat Tip: Pat Leacock at The Field Museum.

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DNA's twist to the right is not to be meddled with, so let's lose the lefties

DNA's twist to the right is not to be meddled with, so let's lose the lefties | Botany teaching & cetera | Scoop.it
Adam Rutherford: It has a simplicity that disguises its colossal power – a ladder twisting up to the right. Yet all too often DNA is misrepresented
Eve Emshwiller's insight:

This part of the evidence that Life on Earth had a single origin, so let's get it right.

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BBC News - More light shed on orchids that deceive bees

BBC News - More light shed on orchids that deceive bees | Botany teaching & cetera | Scoop.it
The secrets of orchids that trick male insects into pollinating them by mimicking females are revealed by scientists.
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Eve Emshwiller's curator insight, April 29, 2013 11:06 AM

Amusing footage of bee trying to copulate with an orchid flower.  Deception pollination.

Eve Emshwiller's comment, April 29, 2013 11:09 AM
oops, I meant to post this on my other topic, Botany teaching & cetera.
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Plants send SOS signal to insects

Plants send SOS signal to insects | Botany teaching & cetera | Scoop.it
Plants are able to summon insects to their aid to avoid being eaten by caterpillars, scientists discover.
Eve Emshwiller's insight:

Caterpillars bring on their own doom when their saliva causes changes in volatiles given off by the plants they are eating.

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Big ecosystem changes viewed through the lens of tiny carnivorous plants

Big ecosystem changes viewed through the lens of tiny carnivorous plants | Botany teaching & cetera | Scoop.it
Big ecosystem changes viewed through the lens of tiny carnivorous plants Science Daily (press release) The water-filled pool within a pitcher plant, it turns out, is a tiny ecosystem whose inner workings are similar to those of a full-scale water...
Eve Emshwiller's insight:

"What do a pond or a lake and a carnivorous pitcher plant have in common?" Use of pitcher plants to study tipping points, such as those from climate change.

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What Plants Talk About - Full Length Documentary

"This program integrates hard-core science with a light-hearted look at how plants behave, revealing a world where plants are as busy, responsive and complex as we are."


Via Mary Williams
Eve Emshwiller's insight:

I hope to have time to watch this sometime soon.

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Andres Zurita's curator insight, April 20, 2013 12:30 PM

great source of outreach material

Ana G. Valenzuela Zapata's curator insight, April 25, 2013 2:55 AM

Hermoso

Subhabrata Panda's curator insight, April 25, 2013 11:33 AM

This an in-depth studies on biological phenomena with the help of physical and chemical methods.

Rescooped by Eve Emshwiller from Plant Biology Teaching Resources (Higher Education)
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Image reuse guidelines - teachable moment?

Image reuse guidelines - teachable moment? | Botany teaching & cetera | Scoop.it

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You may have caught this discussion, about a popular facebook page's inappropriate reuse of images (http://blogs.scientificamerican.com/compound-eye/2013/04/23/facebooks-i-fcking-love-science-does-not-fcking-love-artists/).

 

Here's a good rule, which I learned from a copyright lawyer, "The golden rule: Just because it’s on the internet doesn’t give your permission to reuse it."

 

With that in mind, are you doing enough to teach your students about the appropriate appropriation of images? Of course, you teach them how to find and cite articles, but what messages do you give them about crediting image souces? 

 

Talk to your students about the importance of crediting the work of others. Written class work or talks that are shared only in the classroom should cite all image sources. Work that is to be published, whether in a journal or online, needs a more formal approach, which often includes getting permission from the copyright holder.

 

Here are a couple of tips about sourcing images for publication that I shared at a science communication workshop.

 

Image databases

If you want to reuse an image from an image database, be sure to adhere to their requests – some want you to write for permission, others do not. I always include a credit and a link to the source – it’s polite, and gives credit where credit is due.

A few that are good sources of (usually) free images, with attribution:

Centers for Disease Control and Prevention - http://phil.cdc.gov/Phil/home.asp

Forestry Images – http://www.forestryimages.org/log.cfm

The Higher Education Academy Center for Bioscience ImageBank (Animals, plants and other) http://www.bioscience.heacademy.ac.uk/imagebank/

Clip art - http://openclipart.org/

Searchable free photos - http://www.bigfoto.com/

Images in the Teaching Tools in Plant Biology slides cite back to their original sources, and can be a good place for students to find sourced images http://www.plantcell.org/site/teachingtools/teaching.xhtml

 

Wikipedia

The images illustrating Wikipedia articles are almost always available through a Creative Commons license. Wikipedia also maintains a list of public domain image resources here:

http://en.wikipedia.org/wiki/Wikipedia:Public_domain_image_resources

 

Learn about the Creative Commons license here: http://en.wikipedia.org/wiki/Creative_Commons_license

 

Scientific journals

Images from scientific journals are copyright protected. You can often use them for educational purposes without paying a fee, but you must obtain permission first. Look for the Rights and Permissions link, usually on the abstract page of an article, but sometimes on the general journal information pages. Many journals use the Copyright Clearance Center service to manage their permissions - you have to register. Some journals cover all their content by a Creative Commons license and do not require a copyright clearance center request (but do require attribution). Notably, JBC and the PLOS and BMC journals are covered by creative commons licenses.

 

I wasn't taught about the electronic sharing of images when I was a student, because we didn't have the internet (as we know it) when I was a student, but our students live in in a more complex world - don't send them out unprepared!


Via Mary Williams
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Abigail Rumsey's comment, April 25, 2013 4:09 AM
You can also use an option on the advanced search of www.flickr.com to just search Creative Commons licensed images.
Mary Williams's comment, April 27, 2013 10:14 AM
Going beyond images, here is an intersting guide on how to credit moving images and sound! I didn't know that... http://lefthandedbiochemist.wordpress.com/2013/03/27/guide-for-citing-audiovisual-materials/